feat: add nightly branch workflow

docs/implementation/PHASE_0_COMPLETE.md

@@ -31,6 +31,7 @@ Phase 0 validation and tooling infrastructure has been successfully implemented
 **File**: `.github/skills/scripts/validate-skills.py`
 
 **Features**:
+
 - Validates all required frontmatter fields per agentskills.io spec
 - Checks name format (kebab-case), version format (semver), description length
 - Validates tags (minimum 2, maximum 5, lowercase)
@@ -40,6 +41,7 @@ Phase 0 validation and tooling infrastructure has been successfully implemented
 - Execution permissions set
 
 **Test Results**:
+
 ```
 ✓ test-backend-coverage.SKILL.md is valid
 Validation Summary:
@@ -55,6 +57,7 @@ Validation Summary:
 **File**: `.github/skills/scripts/skill-runner.sh`
 
 **Features**:
+
 - Accepts skill name as argument
 - Locates skill's execution script (`{skill-name}-scripts/run.sh`)
 - Validates skill exists and is executable
@@ -64,6 +67,7 @@ Validation Summary:
 - Execution permissions set
 
 **Test Results**:
+
 ```
 [INFO] Executing skill: test-backend-coverage
 [SUCCESS] Skill completed successfully: test-backend-coverage
@@ -75,12 +79,14 @@ Exit code: 0
 All helper scripts created and functional:
 
 **`_logging_helpers.sh`**:
+
 - `log_info()`, `log_success()`, `log_warning()`, `log_error()`, `log_debug()`
 - `log_step()`, `log_command()`
 - Color support with terminal detection
 - NO_COLOR environment variable support
 
 **`_error_handling_helpers.sh`**:
+
 - `error_exit()` - Print error and exit
 - `check_command_exists()`, `check_file_exists()`, `check_dir_exists()`
 - `run_with_retry()` - Retry logic with backoff
@@ -88,6 +94,7 @@ All helper scripts created and functional:
 - `cleanup_on_exit()` - Register cleanup functions
 
 **`_environment_helpers.sh`**:
+
 - `validate_go_environment()`, `validate_python_environment()`, `validate_node_environment()`, `validate_docker_environment()`
 - `set_default_env()` - Set env vars with defaults
 - `validate_project_structure()` - Check required files
@@ -98,6 +105,7 @@ All helper scripts created and functional:
 **File**: `.github/skills/README.md`
 
 **Contents**:
+
 - Complete overview of Agent Skills
 - Directory structure documentation
 - Available skills table
@@ -114,6 +122,7 @@ All helper scripts created and functional:
 ### ✅ 6. .gitignore Updated
 
 **Changes Made**:
+
 - Added Agent Skills runtime-only ignore patterns
 - Runtime temporary files: `.cache/`, `temp/`, `tmp/`, `*.tmp`
 - Execution logs: `logs/`, `*.log`, `nohup.out`
@@ -122,6 +131,7 @@ All helper scripts created and functional:
 - **IMPORTANT**: SKILL.md files and scripts are NOT ignored (required for CI/CD)
 
 **Verification**:
+
 ```
 ✓ No SKILL.md files are ignored
 ✓ No scripts are ignored
@@ -132,10 +142,12 @@ All helper scripts created and functional:
 **Skill**: `test-backend-coverage`
 
 **Files**:
+
 - `.github/skills/test-backend-coverage.SKILL.md` - Complete skill definition
 - `.github/skills/test-backend-coverage-scripts/run.sh` - Execution wrapper
 
 **Features**:
+
 - Complete YAML frontmatter following agentskills.io v1.0 spec
 - Progressive disclosure (under 500 lines)
 - Comprehensive documentation (prerequisites, usage, examples, error handling)
@@ -146,6 +158,7 @@ All helper scripts created and functional:
 - Sets default environment variables
 
 **Frontmatter Compliance**:
+
 - ✅ All required fields present (name, version, description, author, license, tags)
 - ✅ Name format: kebab-case
 - ✅ Version: semantic versioning (1.0.0)
@@ -159,12 +172,14 @@ All helper scripts created and functional:
 ### ✅ 8. Infrastructure Tested
 
 **Test 1: Validation**
+
 ```bash
 .github/skills/scripts/validate-skills.py --single .github/skills/test-backend-coverage.SKILL.md
 Result: ✓ test-backend-coverage.SKILL.md is valid
 ```
 
 **Test 2: Skill Execution**
+
 ```bash
 .github/skills/scripts/skill-runner.sh test-backend-coverage
 Result: Coverage 85.5% (minimum required 85%)
@@ -173,6 +188,7 @@ Result: Coverage 85.5% (minimum required 85%)
 ```
 
 **Test 3: Git Tracking**
+
 ```bash
 git status --short .github/skills/
 Result: 8 files staged (not ignored)
@@ -185,16 +201,20 @@ Result: 8 files staged (not ignored)
 ## Success Criteria
 
 ### ✅ 1. validate-skills.py passes for proof-of-concept skill
+
 - **Result**: PASS
 - **Evidence**: Validation completed with 0 errors, 0 warnings
 
 ### ✅ 2. skill-runner.sh successfully executes test-backend-coverage skill
+
 - **Result**: PASS
 - **Evidence**: Skill executed successfully, exit code 0
 
 ### ✅ 3. Backend coverage tests run and pass with ≥85% coverage
+
 - **Result**: PASS (85.5%)
 - **Evidence**:
+
   ```
   total: (statements) 85.5%
   Computed coverage: 85.5% (minimum required 85%)
@@ -202,30 +222,35 @@ Result: 8 files staged (not ignored)
   ```
 
 ### ✅ 4. Git tracks all skill files (not ignored)
+
 - **Result**: PASS
 - **Evidence**: All 8 skill files staged, 0 ignored
 
 ## Architecture Highlights
 
 ### Flat Structure
+
 - Skills use flat naming: `{skill-name}.SKILL.md`
 - Scripts in: `{skill-name}-scripts/run.sh`
 - Maximum AI discoverability
 - Simpler references in tasks.json and workflows
 
 ### Helper Scripts Pattern
+
 - All skills source shared helpers for consistency
 - Logging: Colored output, multiple levels, DEBUG mode
 - Error handling: Retry logic, validation, exit codes
 - Environment: Version checks, project structure validation
 
 ### Skill Runner Design
+
 - Universal interface: `skill-runner.sh <skill-name> [args...]`
 - Validates skill existence and permissions
 - Changes to project root before execution
 - Proper error reporting with helpful messages
 
 ### Documentation Strategy
+
 - README.md in skills directory for quick reference
 - Each SKILL.md is self-contained (< 500 lines)
 - Progressive disclosure for complex topics
@@ -234,6 +259,7 @@ Result: 8 files staged (not ignored)
 ## Integration Points
 
 ### VS Code Tasks (Future)
+
 ```json
 {
     "label": "Test: Backend with Coverage",
@@ -243,12 +269,14 @@ Result: 8 files staged (not ignored)
 ```
 
 ### GitHub Actions (Future)
+
 ```yaml
 - name: Run Backend Tests with Coverage
   run: .github/skills/scripts/skill-runner.sh test-backend-coverage
 ```
 
 ### Pre-commit Hooks (Future)
+
 ```yaml
 - id: backend-coverage
   entry: .github/skills/scripts/skill-runner.sh test-backend-coverage
@@ -274,6 +302,7 @@ Result: 8 files staged (not ignored)
 ## Next Steps
 
 ### Immediate (Phase 1)
+
 1. Create remaining test skills:
    - `test-backend-unit.SKILL.md`
    - `test-frontend-coverage.SKILL.md`
@@ -282,11 +311,13 @@ Result: 8 files staged (not ignored)
 3. Update GitHub Actions workflows
 
 ### Phase 2-4
+
 - Migrate integration tests, security scans, QA tests
 - Migrate utility and Docker skills
 - Complete documentation
 
 ### Phase 5
+
 - Generate skills index JSON for AI discovery
 - Create migration guide
 - Tag v1.0-beta.1